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Finding the Fourth Proportional to 360,029.80, 538,878.30 and 255,053.80

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Solution

The fourth proportional to 360,029.80, 538,878.30 and 255,053.80 is: 381,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,029.80 : 538,878.30 = 255,053.80 : x
  2. Step 2: Convert to fraction form
    360,029.80/538,878.30 = 255,053.80/x
  3. Step 3: Cross multiply
    360,029.80x = 538,878.30 × 255,053.80
  4. Step 4: Simplify right side
    360,029.80x = 137,442,958,152.54
  5. Step 5: Solve for x
    x = 137,442,958,152.54/360,029.80
  6. Step 6: Final answer
    x = 381,754.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.